www.fanox.com Rev. 07 39/1384.16. IEEE CurvesThe IEEE curves follow the following mathematical equation:( ) +−= BVATDt P 1Where:adjustedIIV =And we have the following curves:• Inverse Curve• Very Inverse Curve• Extremely Inverse CurveWhich relate to the parameters figuring in the following Setting group:Parameters A P BExt. Inverse 28,2 2 0,1217Very Inverse 19,61 2 0,491Inverse 0,0515 0,02 0,114The curve can move from its axis using the TD time selection device, which the user can adjust.Iadjusted is the initial operating current, set by the user.